In what is likely to be the biggest expansion to the Glass Explorer program since the massive #ifihadglass social network contest the company conducted earlier this year, Google has decided to invite everyone that is currently an All Access subscriber to purchase Google Glass.

An email rolled out to Google Play Music All Access subscribers today explaining what those people need to do in order to take part in the program. Like before, users will be asked to send Google a little bit of personal information to confirm that they want to make the purchase.

Once Google has a completed list, people will get an email inviting them to spend the $1500 (plus tax) to have their Glass, in their color of choice, shipped to them. Users will be able to request a pick up at one of the Glass venues, but if they aren’t close to these places shipping options will be available.

After this program rolls out, Google’s Glass Explorer program will be significantly larger. Early estimates put the current Explorer count at around 15,000 people, so it isn’t difficult to imagine this bringing the program past 20,000. This ramp up in users comes just after Glass developers were granted full access to the GDK, so these users will be participating in the program just as native apps start arriving on the platform.

There’s a lot of work still to be done in order to make Glass a consumer product, including the actual price of the hardware, but the Explorer program marches on all the same.